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<H1>Apache module mod_env</h1>

This module is contained in the <code>mod_env.c</code> file, and
is not compiled in by default. It provides for
passing environment variables to CGI/SSI scripts. Is is only available
in Apache 1.1 and later.

<h2>Summary</h2>

This module allows Apache's CGI and SSI environment to inherit
environment variables from the shell which invoked the httpd process.
CERN web-servers are able to do this, so this module is especially
useful to web-admins who wish to migrate from CERN to Apache without
rewriting all their scripts
 
<h2>Directives</h2>
<ul>
<li><A HREF="#passenv">PassEnv</A>
<li><A HREF="#setenv">SetEnv</A>
<li><A HREF="#unsetenv">UnsetEnv</A>
</ul>

<hr>

<A name="passenv"><h2>PassEnv</h2></A>
<strong>Syntax:</strong> PassEnv <em>variable variable ...</em><br>
<strong>Context:</strong> server config, virtual host<br>
<strong>Status:</strong> Base<br>
<strong>Module:</strong> mod_env<br>
<strong>Compatibility:</strong> PassEnv is only available in
Apache 1.1 and later.<p>

Specifies one or more environment variables to pass to CGI scripts
from the server's own environment. Example:
<pre>
    PassEnv LD_LIBRARY_PATH
</pre>

<HR>

<A name="setenv"><h2>SetEnv</h2></A>
<strong>Syntax:</strong> SetEnv <em>variable value</em><br>
<strong>Context:</strong> server config, virtual host<br>
<strong>Status:</strong> Base<br>
<strong>Module:</strong> mod_env<br>
<strong>Compatibility:</strong> SetEnv is only available in
Apache 1.1 and later.<p>

Sets an environment variable, which is then passed on to CGI
scripts. Example:
<pre>
    SetEnv SPECIAL_PATH /foo/bin
</pre>

<hr>

<A name="unsetenv"><h2>UnsetEnv</h2></A>
<strong>Syntax:</strong> UnsetEnv <em>variable variable ...</em><br>
<strong>Context:</strong> server config, virtual host<br>
<strong>Status:</strong> Base<br>
<strong>Module:</strong> mod_env<br>
<strong>Compatibility:</strong> UnsetEnv is only available in
Apache 1.1 and later.<p>

Removes one or more environment variables from those passed on to
CGI scripts. Example:
<pre>
    UnsetEnv LD_LIBRARY_PATH
</pre>



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